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The most accurate pistols on the planet use the .45ACP.
.45ACP or bust.
I'm a 10mm Auto fan. .40 Short & Weak has no place.
5.45X39 > 5.56X45.
I CC a 92FS with 124gr Double-Tap +P's JHP's.

Hopefully this won't cause a debate, but I think I'd like to hear peoples own opinion on their preferences.

Mine are (And it can be about anything Gun related)

.45ACP or bust.

The .40 S&W is a odd round... either go 9X19, or .45....

10mm Auto is better then the .357SIG in every way possible.

I think Glock's are fantastic pistols, but NOT the greatest on the planet.

For killing, the 5.45X39 is better then the 5.56 NATO...

When it comes down to M1911's I won't touch anything but a Colt.

All in all. I carry a Beretta 92FS with 124gr Double-Tap +P's

My opinion: (Yes, opinion. As in, "I don't speak for everyone.")

1. I'll take a .45 for my first choice every time.

2. The .40 nicely fills the gap (that still exists) between the 9mm and .45 ACP. The .40 is what I would be carrying if I couldn't carry a .45 caliber pistol. I won't personally go below .40 if I have a choice in the matter. 9mm is adequate though and I have nothing against it.

However, there is nothing the 9mm can do that the .40 or .45 can't do better when comparing the best loads in each caliber to each other when fired from a full size handgun. I still prefer to stay above 9mm if I can help it.

3. I don't personally care for either cartridge. I Agree on the 10mm in the sense of shear power and penetration but if I had to choose between one or the other for carry, I'd take the .357 Sig. Why? Smaller platform, more controllable, the gun fits my hand better, and less possibility of overpenetration.

4. Glock makes a good gun but not a great gun. Yes there is certainly better but not at that price point.

5. Of the two, 5.56 every time. If I want a commie cartridge, I'd rather have the 7.62x39. (.308 is still better! )

6. When it comes to 1911's, I'd rather have a Sig or HK. The only 1911's I'll ever own are high end custom guns or none at all.

7. The Beretta is a solid choice and if it works for you that's even better. (The Beretta is my favorite pistol in 9mm!)

3. I don't personally care for either cartridge. I Agree on the 10mm in the sense of shear power and penetration but if I had to choose between one or the other for carry, I'd take the .357 Sig. Why? Smaller platform, more controllable, the gun fits my hand better, and less possibility of overpenetration.

There is no need to worry about over penetration with the10mm.

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- Without idiots, there would be no baseline for common sense.

- "Our country went through a transition during the last election where the parasites came together and outnumbered the hosts." -jdavionic

The 45ACP is a great round and the Glock is a great hand gun. I carry a Glock 36.

The 40 S&W is a round that was commissioned by the FBI. They wanted a round that had the stopping power of a 125gr, 357mag with less recoil. They also wanted ten rounds and as easy to train with as a revolver. Simith & Wesson came up with the 40 S&W and a pistol that was double action only. It was offered to the FBI and they bought it.

The 5.56 was not picked by the military because of its killing power. It was designed to hurt people. Take them out of the fight and have some one look after them. It takes two to four men to take care of a man hurt and no one has to take care of a dead man. That is why they picked the 5.56 over the 7.62.

My side arm in the woods is a 44mag. Daily carry is a Glock 36. Best all around gun to do both tasks would be 3" 357 revolver.

For hunting any big game in the United States it would be hard to beat the 358 Winchester with a stiff load. It can be down loaded with 357 bullets and used for taking small game.

Not from what I've seen but maybe your tests results were somehow different than mine.

There isn't enough street data on the 10mm nor any commercially available loads in 10mm that are scientifically/professionally tested to the same standards as most Law Enforcement grade ammunition.

As a result, there isn't much real world data available on the subject. Yes, there is some but much of it is either inconclusive or incomplete.

I don't like betting on maybe or it probably won't. Granted, my tests with several 10mm loads were in no way scientific but the results with the 10mm loads almost all over penetrated when compared to other popular calibers such as .40 S&W, .45 ACP, and .357 Mag.

None of the loads tested in any of the other calibers showed any over penetration where the 10mm did nearly every time. We obtained average to really impressive expansion on the loads tested but we had severe over penetration issues with most of them.

To sum it up, the 10mm has a lot of power behind it and it shows in the form of over penetration. With hand loads that were toned down a good bit (closer to .40 S&W velocities) over penetration wasn't a issue and expansion wasn't as impressive with some bullets either.

I'm not here to tell anyone that carries this cartridge that they should reconsider it. All I'm stating is what my experience has been with the cartridge and why I feel the way I do about it.

The 10mm isn't for everyone. The boost you get over the .40 S&W is worth it to some, but frankly, most people can't handle it. That's why I would never recommend the 10mm to my agency as a prospective choice for a duty caliber. Even the mid range loads are too stout for many shooters, and most especially those LEO's who don't practice their shooting skills. That having been said, my 17 year old son can handle 200 grain Underwood XTP, so where there's a will there's a way. I must be completely forthcoming though, in that my son is a 6 foot 3 inch tight end on his high school football team. If size and strength matters, which I think it does in shooting the heavier calibers, the 10mm is way too much for many smaller statured police officers who weren't born and bred shooting firearms.